Commit edd90380 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu: add UAPI to query GFX shadow sizes 



Add UAPI to query the GFX shadow buffer requirements
for preemption on GFX11.  UMDs need to specify the shadow
areas for preemption.

v2: move into existing asic info query
    drop GDS as its use is determined by the UMD (Marek)
v3: Update comments to note that alignment is base
    virtual alignment (Alex)

Reviewed-by: default avatarMarek Olšák <marek.olsak@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 38be7796

include/uapi/drm/amdgpu_drm.h

+8 −0
Original line number Diff line number Diff line
@@ -1138,6 +1138,14 @@ struct drm_amdgpu_info_device { 
	__u64 mall_size;            /* AKA infinity cache */

	/* high 32 bits of the rb pipes mask */

	__u32 enabled_rb_pipes_mask_hi;

	/* shadow area size for gfx11 */

	__u32 shadow_size;

	/* shadow area base virtual alignment for gfx11 */

	__u32 shadow_alignment;

	/* context save area size for gfx11 */

	__u32 csa_size;

	/* context save area base virtual alignment for gfx11 */

	__u32 csa_alignment;

};



struct drm_amdgpu_info_hw_ip {